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- 产品名称：DB4扬声器
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简单介绍
DB4扬声器
DB4扬声器供潜在爆炸性气体和尘埃的环境中使用,25 瓦的额定功率和是适用于所有燃气集类别包括氢。Flamepaths，flare、 壳体，是完全由紫外线稳定玻璃纤维增强聚酯生产的。不锈钢螺钉和烧结矿防止设备被腐蚀
产品描述
DB4扬声器
DB4扬声器供潜在爆炸性气体和尘埃的环境中使用,25 瓦的额定功率和是适用于所有燃气集类别包括氢。Flamepaths，flare、 壳体，是完全由紫外线稳定玻璃纤维增强聚酯生产的。不锈钢螺钉和烧结矿防止设备被腐蚀
This range of loudspeakers, intended for use in potentially explosive gas and dust atmospheres, has a power rating of up to 25 watts and is suitable for use in all gas groups including hydrogen.
The flamepaths, flare and the body, are manufactured completely from a UV stable glass reinforced polyester. Stainless steel screws and sinter are incorporated thus ensuring a corrosion free product. A tapered flamepath is used to overcome the problems of assembly of parallel spigot flamepaths.
An optional Exe terminal chamber is available.
An uncertified version is available for use in non-explosive atmospheres.
Models compliant to BS 5839, part 8 are available.
Download DB4 datasheet
Download DB4 North American datasheet
Features
- Zone 1, Zone 2 & non-Ex use.
- UL listed for USA and Canada:
- Class I, Div 2, Groups A-D.
- Class I, Zones 1 & 2, AExd IIC, T4.
- Exd IIC T4/T5.
- ATEX approved, Ex II 2GD.
- BASEEFA certified.
- GOST ‘R’ & ‘K’ certified.
- Australian (SAA) certified.
- Brazilian (Inmetro) certified.
- Optional Exe terminal chamber.
- IP66, IP67, NEMA 4x & 6.
- Certified temperature:
- –55°C to +70°C*.
- –67°F to +158°F*.
- GRP corrosion-free flamepaths.
- 119dBA at 25 watts at 1 metre.
- 8, 15, 20 and 25 watt versions.
- BS 5839, part 8 compliant versions available.
- Addressable capability.
- Power tappings, via integral transformer.
- Ratcheted swivel bracket.
- Stainless steel sinter.
- Stainless steel mounting bracket.
- Tapered flamepath.
- Line and 8Ω versions available.
*Depending on version.
| Certification |
ATEX, UL, GOST R & K, Inmetro |
| Flameproof |
ATEX Ex II 2GD, Exd(e) IIC T4/T5 |
| Ambient Operating Temperature |
-55°C to +70°C (low temp unit)
-20°C to +70°C (standard)
|
| Ingress Protection |
IP66 & IP67 |
| Material |
Corrosion-free GRP |
| Output |
107 dBA at 1W at 1 metre |
| |
119 dBA at 25W at 1 metre |
| Entries |
Up to 2 x 20mm |
| Weight |
5kg |
| Tappings |
25, 12.5, 6, 4, 2, 1 |
| Options |
Power (8W, 15W, 20W, 25W), body colour, |
| |
Tag & duty labels, certification, |
| |
BS5839, part 8 compliance, |
| |
Terminal chamber, transformer voltage |
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